Creating custom input fields on the admin side

Question

I'm pretty new to wordpress (been using wordpress for a week now) and took over a site from a colleague of mine . He partially created a plugin to input "Specials" onto the site. At the moment, the fields that it shows is "Title", and "Body" with a featured image. This is what the code looks like:

public function create_specials_type()
{
    register_post_type('specials',
        array(
            'labels' => array(
                'name' => __('Specials'),
                'singular_name' => __('Specials')
            ),
            'public' => true,
            'has_archive' => true,
            'supports' => array(
                'title',
                'editor',
                'thumbnail',
                'revisions'
            ),
            'show_ui' => true,
            'show_in_menu' => true
        )
    );

    add_theme_support('post-thumbnails',
        array(
            'specials'
        )
    );
}

I want to modify this so that it shows a page (on the admin side) that looks like this:

Special Name (input) Description (textarea) Items (textarea) Cost (input) Image (image)

I'm using WP 3.9.2 with a custom theme. Can anyone assist me with writing this plugin or at least provide a link to a good resource that will help me do this?

Answer 1

For beginner the easiest way to create custom fields for post types is ACF -plugin advancedcustomfields.com If you need to create custom post types I would recommend Types -plugin that actually has custom field builder too (not as neat as ACF though) wordpress.org/plugins/types

Answer 2

To generate custom post , custom taxonomy and custom metabox (admin input field). I suggest you to use two plugins

1 . Custom Post Type UI (https://wordpress.org/plugins/custom-post-type-ui/ ) for registering custom post and taxonomy 2. Advance Custom Field ( https://wordpress.org/plugins/advanced-custom-fields/ ) for creating meta box (admin input panel) , it supports several type of input field like text , number , file , image , map , date picker , colorpicker even complex relational post object and conditional logic.

Hope these will help you .